package orm;

import java.util.List;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.Transaction;
import org.hibernate.criterion.Example;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A data access object (DAO) providing persistence and search support for
 * Follow entities. Transaction control of the save(), update() and delete()
 * operations can directly support Spring container-managed transactions or they
 * can be augmented to handle user-managed Spring transactions. Each of these
 * methods provides additional information for how to configure it for the
 * desired type of transaction control.
 * 
 * @see orm.Follow
 * @author MyEclipse Persistence Tools
 */

public class FollowDAO extends BaseHibernateDAO {
	private static final Logger log = LoggerFactory.getLogger(FollowDAO.class);
	// property constants
	public static final String USERID = "userid";
	public static final String GROUP_NAME = "groupName";

	public void save(Follow transientInstance) {
		log.debug("saving Follow instance");
		try {
			Transaction tr=getSession().beginTransaction();
			getSession().save(transientInstance);
			tr.commit();
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(Follow persistentInstance) {
		log.debug("deleting Follow instance");
		try {
			Transaction tr=getSession().beginTransaction();
			getSession().delete(persistentInstance);
			tr.commit();
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public Follow findById(java.lang.Integer id) {
		log.debug("getting Follow instance with id: " + id);
		try {
			Follow instance = (Follow) getSession().get("orm.Follow", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(Follow instance) {
		log.debug("finding Follow instance by example");
		try {
			List results = getSession().createCriteria("orm.Follow")
					.add(Example.create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Follow instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Follow as model where model."
					+ propertyName + "= ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByUserid(Object userid) {
		return findByProperty(USERID, userid);
	}

	public List findByGroupName(Object groupName) {
		return findByProperty(GROUP_NAME, groupName);
	}

	public List findAll() {
		log.debug("finding all Follow instances");
		try {
			String queryString = "from Follow";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public Follow merge(Follow detachedInstance) {
		log.debug("merging Follow instance");
		try {
			Transaction tr=getSession().beginTransaction();
			Follow result = (Follow) getSession().merge(detachedInstance);
			tr.commit();
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(Follow instance) {
		log.debug("attaching dirty Follow instance");
		try {
			Transaction tr=getSession().beginTransaction();
			getSession().saveOrUpdate(instance);
			tr.commit();
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(Follow instance) {
		log.debug("attaching clean Follow instance");
		try {
			Transaction tr=getSession().beginTransaction();
			getSession().lock(instance, LockMode.NONE);
			tr.commit();
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}
}